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Response of Rainfed Lentil to Method of Sowing and Fertilizer Placement

M. Altab Hossain
SSO
Agronomy Division, Gazipur

M. S. A. Khan
SO
Agronomy Division, Gazipur

Abstract/ Executive Summary:

Response of rainfed lentil (cv. BARI masur-4) to method of sowing and fertilizer placement was evaluated during the winter season of 2004-2005 at Joydebpur, Gazipur and RARS, Jamalpur. Sowing methods and fertilizer placement significantly influenced soil water depletion from the root profile and water expense efficiency (WEE) at Joydebpur. Significantly higher grain yields (1.28 - 1.40 t/ha) and WEE (93.6 - 99.0 kg/ha/cm) were obtained by drilling of seeds and placing fertilizer in the moist sub - surface below the seed or in - between furrows as against yields (0.67 - 0.80 t/ha) and WEE (60.9 - 66.1 kg/ha/cm) through broadcasting seeds and fertilizer at Joydebpur. At Jamalpur, highest seed yield (1.19 t/ha) was obtained for broadcast seeding and fertilizer placement at 30 cm apart (1.12 t/ha), fertilized seed placed in the same furrow by drill (1.10 t/ha) and drill sowing and fertilizer placed in adjacent furrow (1.06 t/ha).

Keywords: Response, Rainfed Lentil, Method of sowing, Fertilizer placement

Location: Joydebpur, Gazipur, RARS, Jamalpur

Start Date: 10-11-2004

End Date: 00-00-2005

Program Area: Resource Development and Management

Commodity: Lentil

Objectives:

To determine the effect of sowing methods and placement of fertilizers on the stand establishment, water use efficiency and yield of lentil under rainfed condition.

Methodology:

Field experiment was carried out during the rabi season of 2004-2005 at the Bangladesh Agricultural Research Institute farm, Joydebpur, Gazipur and RARS, Jamalpur. The soil of Joydebpur farm was silty clay loam with a pH 6.4 containing 1.04% organic matter, 0.36% total nitrogen, 8.02 ppm phosphorus, 1.04 meq/100 g soil exchangeable K and 10 ppm sulphur, respectively. Rainfall at Joydebpur from November 10, 2004 to February 26, 2005 was 7.1 mm. The mean monthly maximum and minimum temperature of this location were 27.6 and 14.9⁰C during the period of the study at Joydebpur.The treatments compared were: T₁) broadcast sowing and broadcast fertilizer at the time of final land preparation, T₂) broadcast sowing and fertilizer placed at 30 cm apart with 10 cm depth, T₃₎ drill sowing and fertilizer broadcast, T₄) drill sowing and fertilizer placed in the same furrow in moist sub - surface, T₅₎ drill sowing and fertilizer placed in adjacent furrow, T6) drill sowing and fertilizer P placed in same furrow and other fertilizer broadcast at the time of final land preparation, T₇) Seed and fertilizer broadcast plus 5 ton cowdung/ha and T₈) broadcast sowing without fertilizer. The experiment was laid in a randomized complete block design with three replications. The size of each plot was 5 m x 3m. The inoculated seeds of lentil variety BARI masur-4 30 kg/ha were sown on November 10, 2004 in both the location. A single seed drill was used for sowing lentil seeds continuously at a depth of 10 cm in rows 30 cm apart. Fertilizers were applied at the time of sowing at the rate of 20 –18-20-30 kg/ha NPKS in the form of Urea. TSP, MP and Gypsum, respectively in both the location. In broadcast method, full amount of fertilizers were broadcast before last ploughing followed by broadcasting of seeds and laddering. In fertilizer placement methods, fertilizers were mixed and placed in the furrow (10 cm depth) through a funnel attached to a country plough. In case of placement in adjacent furrows, the fertilizers were mixed and placed in - between in the furrows (rows) which were 30 cm apart at a depth of 10 cm. In case of T₂, the entire quantity of fertilizer was mixed and placed in furrows 30 cm apart at a depth of 10 cm and then seeds were broadcasted followed by laddering. A light irrigation by sprinkler system was given after sowing seeds for uniform emergence at Joydebpur and then the experiment was carried under rainfed condition on conserved moisture. Soil moisture was determined gravimetrically at sowing and at harvest.

Source of Information: Annual Report, Agronomy Division 2004-2005, BARI

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 10,000/-

Total Budget (Tk.) : 10,000/-

Achievement/Findings:

Maximum grain yields (1.28 - 1.40 t/ha) and WEE (93.6 - 99.0 kg/ha/cm) were obtained by drilling of seeds and placing fertilizer in the moist sub - surface below the seed or in - between furrows as against yields (0.67 - 0.80 t/ha) and WEE (60.9 - 66.1 kg/ha/cm) through broadcasting seeds and fertilizer at Joydebpur. At Jamalpur, highest seed yield (1.19 t/ha) was obtained for broadcast seeding and fertilizer placement at 30 cm apart (1.12 t/ha), fertilized seed placed in the same furrow by drill (1.10 t/ha) and drill sowing and fertilizer placed in adjacent furrow (1.06 t/ha).

Knowledge Management: Report/Proceedings